Quality Control & Quality Management Systems

Certification for the quality management system ISO 9001:2008



A total quality management system and certification to ISO 9001:2008 enables Vision Engineering Manufacturing Services to maintain and measure all processes. Continual improvement from measured processes allows the quality team to deliver outstanding reliability, with expertise and tools to inspect and measure component parts, so final assembled products are despatched ready to use. Our Supplier management processes are robust with a quality focus on supplier system audits, stringent first article approval and measurement correlation.





Our machining, manufacturing and assembly services provide access to leading-edge technologies and facilities, including dust-free clean rooms, temperature controlled calibration and state-of-the-art quality control facilities.


Products are manufactured and tested to CE/UL/CSA standards, where required.
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The Quality team ensures all directives are adhered to, including WEEE and RoHS.


Quality production focuses on a continual process improvement approach. Key process data is statistically analysed to identify areas for improvement and Quality Improvement teams are the vehicle for driving implementation.


We are also able to provide a precision dimensional measurement service to both our internal and external customers.


»  Read about our Quality Policy


Capabilities - Key Quality Control Equipment


Manufacturing facilities in the UK and USA have a full range of traditional inspection equipment, plus both sites are equipped with Mitutoyo programmable Coordinate Measuring Machines with measurement repeatability of 5 microns. Smaller precision components that require accurate measurement of features such as circles, angles, lines, arcs and distances are measured with non-contact 3-axis optical measuring microscopes, coupled with a multi-function digital microprocessor providing repeatability of 2 microns.



2 x Mitutoyo Coordinate Measuring Machines (1 UK / 1 USA)
  • 3-axis manual / bridged type computer controlled machine
  • 5 microns measuring repeatability
  • Measuring capacity 800 L x 700 W x 600 H
  • Fully programmable & equipped with Renishaw PH9 motorised heads
Baty Shadowgraph / Comparator
  • 2-axis manual positioning unit incorporating a Quadra Check digital display unit
  • Magnification can be varied from 10x, 5x, 2x
  • Rotational viewing screen allowing machine to accommodate various angles to within 0.1 of a degree
Hawk 3-Axis Optical Measuring Microscope
  • Accurate non-contact measurement of precision components. Microscope resolution, high contrast images, combined with a precision measuring stage
  • Measuring range up to 200mm x 150mm x 50mm (X, Y, Z-axis)
  • Measuring stage equipped with 1 micron resolution encoders providing a repeatability of 2 microns
Macro Dynascope Measuring Microscope
  • Measuring range up to 150mm x 150mm (X, Y-axis)
  • 4 magnification objectives with zoom capability
  • Metronics QC-200 digital microprocessor
Spectrometer (for Quality Control of Optical Components)
  • Perkin Elmer - Lambda 15
  • High performance double beam UV/VIS spectrometer
A full range of control height gauges, calipers, micrometers, gauge blocks etc
A vigorous policy of continuous vendor/supplier approval and periodic assessment is driven by the Quality Department